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Notable Holders of Power-One Inc New (PWER)

  |   Expand Research on PWER   |   * Does Not Fully Represent All Holders
Fund Title Shares % Owned Source
WADDELL & REED FINANCIAL INC COM 8,209,150 7.88% 13F
WELLS FARGO & CO/MN EQUITY 6,929,916 6.65% 13F
GUGGENHEIM CAPITAL LLC COM 5,633,743 5.41% 13F
VANGUARD GROUP INC COM 5,062,767 4.86% 13F
PRICE T ROWE ASSOCIATES INC /MD/ COMM STK 4,889,600 4.69% 13F
Artisan Partners Limited Partnership COM 4,511,700 4.33% 13F
THOMPSON SIEGEL & WALMSLEY LLC COM 3,856,251 3.70% 13F
Citadel CMN 1,889,955 1.81% 13F
BlackRock Institutional Trust Company, N.A. COM 1,719,166 1.65% 13F
DIMENSIONAL FUND ADVISORS LP COM 1,605,883 1.54% 13F
BlackRock Fund Advisors COM 1,399,859 1.34% 13F
HEARTLAND ADVISORS INC COM 1,384,905 1.33% 13F
STATE STREET CORP COMMON STOCK 1,348,720 1.29% 13F
SCHRODER INVESTMENT MANAGEMENT GROUP COM 1,302,463 1.25% 13F
Perimeter Capital Partners, LLC COM 1,228,500 1.18% 13F
Walthausen & Co., LLC 1,193,900 1.15% 13F
NORTHERN TRUST CORP COM 1,066,904 1.02% 13F
MILLENNIUM MANAGEMENT LLC COM 755,632 0.72% 13F
Alden Global Capital COM 747,000 0.72% 13F
MORGAN STANLEY COM 698,092 0.67% 13F
TIAA CREF INVESTMENT MANAGEMENT LLC COM 694,226 0.67% 13F
Invesco Ltd. COMMON 579,470 0.56% 13F
OPPENHEIMER FUNDS INC COM 513,940 0.49% 13F
MUHLENKAMP & CO INC COM 404,150 0.39% 13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM * POWER ONE INC NEW COM 371,797 0.36% 13F
HENNESSY ADVISORS INC COM 316,800 0.30% 13F
GOLDEN CAPITAL MANAGEMENT LLC 297,912 0.29% 13F
MANAGED ACCOUNT ADVISORS LLC 295,254 0.28% 13F
UBS AG COM 246,919 0.24% 13F
SCHWAB CHARLES INVESTMENT MANAGEMENT INC COM 234,433 0.22% 13F
GEODE CAPITAL MANAGEMENT LLC COM 234,259 0.22% 13F
Wellington COM 215,974 0.21% 13F
BlackRock Investment Management, LLC COM 202,489 0.19% 13F
ALGERT COLDIRON INVESTORS LLC COM 193,488 0.19% 13F
CITIGROUP INC COM 177,970 0.17% 13F
GARDNER LEWIS ASSET MANAGEMENT L P COM 172,895 0.17% 13F
GSA CAPITAL PARTNERS LLP COM 161,797 0.16% 13F
Gotham Asset Management, LLC COM 160,332 0.15% 13F
ANALYTIC INVESTORS INC/CA 155,786 0.15% 13F
GAM Holding Ltd. 150,000 0.14% 13F
BANK OF AMERICA CORP /DE/ 137,613 0.13% 13F
LAZARD ASSET MANAGEMENT LLC COMMON STOCK 137,200 0.13% 13F
Goldman Sachs Asset Management, L.P. CMN 129,723 0.12% 13F
PEAK6 Investments, L.P. COM 128,349 0.12% 13F
MADISON SQUARE INVESTORS LLC. COM 122,046 0.12% 13F
Spot Trading L.L.C (PUT) COM 117,000 0.11% 13F
TEACHERS ADVISORS INC COM 111,060 0.11% 13F
Parametrica Management Ltd COM 100,161 0.10% 13F
DEAN C H & ASSOCIATES INC CS 88,506 0.08% 13F
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC COM 81,230 0.08% 13F
Timber Hill LLC COM 78,614 0.08% 13F
ROYAL BANK OF CANADA \ COM 75,261 0.07% 13F
BARCLAYS PLC (CALL) OPT 74,800 0.07% 13F
Van Eck COM 73,921 0.07% 13F
Highbridge Capital COMMON 70,326 0.07% 13F
PARAMETRIC PORTFOLIO ASSOCIATES Common Stock 69,735 0.07% 13F
FIRST TRUST ADVISORS LP COM 67,492 0.06% 13F
LEGAL & GENERAL GROUP PLC COM 61,802 0.06% 13F
TWO SIGMA INVESTMENTS LLC COM 59,542 0.06% 13F
DEERE & CO COM 58,770 0.06% 13F
Manulife Asset Management (North America) Ltd COM 58,688 0.06% 13F
BECKER CAPITAL MANAGEMENT INC Common Stock 54,000 0.05% 13F
BMO FINANCIAL CORP COM 51,470 0.05% 13F
DEUTSCHE BANK AG\ (PUT) COM 50,000 0.05% 13F
AMERICAN INTERNATIONAL GROUP INC COM 49,728 0.05% 13F
CREDIT SUISSE AG/ COM 49,239 0.05% 13F
KNIGHT CAPITAL GROUP, INC. COM 44,987 0.04% 13F
BLACKROCK ADVISORS LLC COM 44,681 0.04% 13F
Magnetar Financial LLC COM 44,460 0.04% 13F
Verition Fund Management LLC (CALL) COM 43,000 0.04% 13F
American Independence Financial Services LLC COM 42,594 0.04% 13F
CREDIT AGRICOLE S A COM 42,265 0.04% 13F
ING INVESTMENT MANAGEMENT CO COM 39,620 0.04% 13F
Voleon Capital Management LP COMMON 39,600 0.04% 13F
BlackRock Group LTD COM 29,531 0.03% 13F
PRINCIPAL FINANCIAL GROUP INC COM 25,326 0.02% 13F
SG Americas Securities, LLC 21,424 0.02% 13F
Dominick & Dominick LLC COM 20,600 0.02% 13F
REGIONS FINANCIAL CORP COM 17,500 0.02% 13F
FIRST MERCANTILE TRUST CO COMMON STOCK USD.001 16,740 0.02% 13F
SAC Capital COMMON 16,334 0.02% 13F
SiVest Group, Inc. COMMON STOCK 15,700 0.02% 13F
ALLSTATE CORP COMMON 14,400 0.01% 13F
AMERIPRISE FINANCIAL INC COM 13,467 0.01% 13F
ROYAL BANK OF SCOTLAND GROUP PLC COM 13,344 0.01% 13F
Commonwealth Equity Services, Inc COM 12,935 0.01% 13F
TD ASSET MANAGEMENT INC COM 12,300 0.01% 13F
MACQUARIE GROUP LTD COMMON STOCK 10,490 0.01% 13F